The final pathological diagnosis should be dermal fibroma and epidermal sac. Skin grafting can be done according to local conditions after excision, but it may recur. Do you have any partial photos?

Dr. Nie Lanjun, the Second Affiliated Hospital of Southern Medical University, solemnly reminded me that it is impossible to fully understand the condition because I can't see the patient face to face. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )